Lds4821ww Parts

This nozzle guide positions and supports the dishwasher spray nozzle on the rack, helping it align with the rear feed port for reliable water flow to the spray arm and consistent cleaning performance.

• Aligns the rack nozzle with the dishwasher's water feed port
• Stabilizes the nozzle to help ensure steady spray delivery
• If worn or broken, you may notice poor cleaning on the affected rack
• Can also cause intermittent spray or drips at the rear nozzle connection and difficulty engaging the rack nozzle

• Disconnect power and turn off the water supply before servicing
• Pull the rack forward, remove rack end caps/stops, and lift the rack out
• Release the old guide from the nozzle assembly; install the new guide and verify smooth movement and proper alignment with the feed port
• Reinstall the rack, restore power/water, and run a short test to check spray and for leaks

This water guide directs water through the dispenser/ice path so water flows where it should, helping prevent leaks and misdirected dispensing. It's a small molded channel designed to route cold water inside the refrigerator. What it does:

• Guides and channels water from the supply toward the dispenser or ice-making area
• Helps prevent water from dripping into areas it shouldn't and causing puddles
• Supports consistent dispensing by keeping the water path aligned
• Commonly replaced when cracked, warped, or when water is leaking or pooling

• One water guide piece as shown

• Disconnect power and shut off the water supply before replacing
• Remove any interior shelves or panels as needed to access the guide
• Handle carefully to avoid damaging mounting tabs or adjacent seals
• Secure all clips; test dispenser and check for leaks after installation

The Dishrack Roller and Axle is an OEM part for LG dishwashers. This component ensures the smooth and effortless movement of the dishwasher's lower dishrack, facilitating easy loading and unloading of dishes.

Over time, the dishrack roller and axle can wear out or become damaged due to constant use, exposure to high temperatures, or the weight of loaded racks. If the roller or axle is malfunctioning, you may notice difficulty in moving the dishrack, unusual noises, or the rack coming off its track.

Symptoms of a bad dishrack roller and axle include:

• Difficulty moving the dishrack
• Unusual noises when sliding the rack
• The rack coming off its track

This OEM LG part is also compatible with Sears/Kenmore.

The Sump and Motor Assembly is an OEM replacement part for LG dishwashers. As a functional pumping component, it circulates water and removes debris during dish cycles.

Symptoms of a bad sump and motor assembly can include:

• Inability to properly fill or drain water from the dishwasher
• Leaks or excessive pooling of water inside the unit 
• Loud knocking or grinding noises from the motor area

Causes of failure may involve a clogged or cracked sump housing impairing flow, or wear of the motor bearings degrading power output over time.

This genuine OEM LG part is also compatible with some select Kenmore brand models.

This dishwasher sensor assembly contains the thermistor that monitors wash-water temperature and sends readings to the control. Replacing a faulty sensor restores accurate heating and cycle timing for consistent cleaning and to prevent temperature-related interruptions. What it does:

• Measures wash-water temperature via an NTC thermistor
• Sends a resistance signal to the control to manage heater operation and cycle timing
• Helps maintain target temperatures for proper cleaning performance
• Common failure symptoms include no heat or overheating, long/short cycles, temperature-related errors, or poor cleaning/drying

• Disconnect power at the breaker and shut off water before servicing
• Access the sump area from the bottom; you may need to pull the dishwasher forward for clearance
• Expect some residual water—protect the area with towels
• Seat the sensor fully in the sump opening, reconnect the harness, and run a test cycle to check for leaks and proper heating

This check valve is a one-way valve used in the refrigerator's water line. It prevents backflow to maintain pressure for the dispenser and ice maker, helping reduce drips and ensuring consistent water delivery.

• Allows water to flow in one direction only to prevent backflow
• Helps maintain line pressure for steady dispensing and proper ice fills
• May reduce post-dispense dripping at the water outlet
• Failure symptoms can include slow/sputtering dispense, dripping, or inconsistent ice fills

• Unplug the appliance and shut off the household water supply before servicing
• Dispense water to relieve pressure; place a towel to catch residual water
• Note the valve's orientation/flow direction and tubing routing before removal
• Fully seat tubing and secure connections; restore water and check for leaks

This inlet hose routes fresh water into the dishwasher during the fill cycle. Replace a cracked, kinked, or leaking hose to restore proper water flow and help prevent puddles or water damage beneath the unit.

• Routes water into the dishwasher during fill
• Maintains a sealed path to help prevent leaks
• Common fix for leaks under the unit, visible cracks/kinks, or slow/no fill
• Replaces aged, brittle, swollen, or punctured tubing

• Disconnect power and shut off the water supply before servicing
• Place a towel or shallow pan to catch residual water when removing the old hose
• Note the original routing; transfer and secure existing clamps/fittings as needed
• Restore water and run a short cycle while checking all connections for leaks

This display power control board assembly replaces a failed control board for the fridge's user interface and power distribution to the display. Restores display illumination and button response when the original board is faulty. What it does

• Supplies power and control signals to the front display and touch/push buttons.
• Can cause a blank or dim display when the board fails.
• Resolves unresponsive control buttons, intermittent or garbled display readouts.
• Works with the main control system to manage front-panel functions.

• One display power control board assembly.

• Disconnect power to the appliance before beginning any work.
• Handle the board carefully to avoid static discharge and damaged connectors.
• Verify connector orientation and seating; do not force wiring harnesses.

This holder is a small mounting bracket that secures internal components in place, helping reduce movement and noise while keeping parts aligned for reliable operation. It's a direct-fit replacement when the original holder is broken or missing. What it does

• Secures and supports nearby components or assemblies to prevent shifting during operation
• Helps reduce vibration and rattling caused by loose parts
• Maintains proper alignment for connected parts to ensure consistent performance
• Commonly replaced when cracked, warped, or missing after impact or wear

• One holder

• Disconnect power (and water supply if appliance uses water) before servicing
• Inspect surrounding clips and screws; replace any that are damaged
• Typically installs with existing fasteners; keep orientation the same as the original